Component descriptions – Edwards Signaling FireShield 10 Zone User Manual
Page 5
System overview and operation
FireShield Technical Reference Manual
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Component descriptions
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PRG
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(1) Main AC wiring block and fuse holder:
Provides
connections for 120 or 230 volt AC (primary power) from
dedicated service. Includes a primary power fuse (5 A).
(2) Dual Transformer AC wiring block:
Ten-zone panel only.
Provides connections between primary side of both main and
expander transformer and 120 or 230 volt AC (fused primary
power).
(3) Transformer:
Changes 120 or 230 volt AC supply voltage
to 24 volt AC.
(4) Power expander transformer (XTR3A120, XTR3A230):
Optional. Available for the ten-zone panel only. Provides
additional primary power to increase the available NAC
current for the ten-zone panel.
(5) Main circuit board:
Provides connections for all circuits.
Also includes the operator interface.
(6) FSDACT plug:
Used to connect the FSDACT to the circuit
board.
(7) Operator Interface:
Includes operator controls, LED
indicators, and circuit identification labels.
(8) Cabinet enclosure:
Houses the panel electronics and
standby batteries. In some cases the batteries may be housed in
an external battery cabinet (BC-2).
(9) FSDACT:
Optional. Digital alarm communicator
transmitter. Provides LCD display for status messages and
programming menus. Provides two telephone line connections
for sending system messages to a compatible digital alarm
communicator receiver (DACR). Includes an event history log
of panel and FSDACT events.
(10) Program jumper PRG:
Used to place the panel in
programming mode.
(11) Tie wrap mounts:
Nonpower-limited. Used to secure
wires and to help maintain proper separation between power-
limited and nonpower-limited conductors.
(12) Tie wrap mounts:
Power-limited. Used to secure wires
and to help maintain proper separation between power-limited
and nonpower-limited conductors.
(13) Standby batteries:
Provide secondary/standby power to
the panel electronics in the absence of primary power.